Em Fri, 4 Oct 2013 17:56:31 +0530 Shaik Ameer Basha <shaik.ameer@xxxxxxxxxxx> escreveu: > This patch adds support for SCALER device which is a new device > for scaling, blending, color fill and color space conversion > on EXYNOS5410 and EXYNOS5420 SoCs. > > This device supports the followings as key feature. > input image format > - YCbCr420 2P(UV/VU), 3P > - YCbCr422 1P(YUYV/UYVY/YVYU), 2P(UV,VU), 3P > - YCbCr444 2P(UV,VU), 3P > - RGB565, ARGB1555, ARGB4444, ARGB8888, RGBA8888 > - Pre-multiplexed ARGB8888, L8A8 and L8 > output image format > - YCbCr420 2P(UV/VU), 3P > - YCbCr422 1P(YUYV/UYVY/YVYU), 2P(UV,VU), 3P > - YCbCr444 2P(UV,VU), 3P > - RGB565, ARGB1555, ARGB4444, ARGB8888, RGBA8888 > - Pre-multiplexed ARGB8888 > input rotation > - 0/90/180/270 degree, X/Y/XY Flip > scale ratio > - 1/4 scale down to 16 scale up > color space conversion > - RGB to YUV / YUV to RGB > Size - Exynos5420 > - Input : 16x16 to 8192x8192 > - Output: 4x4 to 8192x8192 > Size - Exynos5410 > - Input/Output: 4x4 to 4096x4096 > alpha blending, color fill > > Signed-off-by: Shaik Ameer Basha <shaik.ameer@xxxxxxxxxxx> > --- > drivers/media/platform/exynos-scaler/scaler-regs.c | 336 ++++++++++++++++++++ > drivers/media/platform/exynos-scaler/scaler-regs.h | 331 +++++++++++++++++++ > 2 files changed, 667 insertions(+) > create mode 100644 drivers/media/platform/exynos-scaler/scaler-regs.c > create mode 100644 drivers/media/platform/exynos-scaler/scaler-regs.h > > diff --git a/drivers/media/platform/exynos-scaler/scaler-regs.c b/drivers/media/platform/exynos-scaler/scaler-regs.c > new file mode 100644 > index 0000000..ae4a548 > --- /dev/null > +++ b/drivers/media/platform/exynos-scaler/scaler-regs.c > @@ -0,0 +1,336 @@ > +/* > + * Copyright (c) 2013 Samsung Electronics Co., Ltd. > + * http://www.samsung.com > + * > + * Samsung EXYNOS5 SoC series SCALER driver > + * > + * This program is free software; you can redistribute it and/or modify > + * it under the terms of the GNU General Public License version 2 as > + * published by the Free Software Foundation. > + */ > + > +#include <linux/delay.h> > +#include <linux/platform_device.h> > + > +#include "scaler-regs.h" > + > +/* Scaler reset timeout in milliseconds */ > +#define SCALER_RESET_TIMEOUT 50 > + > +void scaler_hw_set_sw_reset(struct scaler_dev *dev) > +{ > + u32 cfg; > + > + cfg = scaler_read(dev, SCALER_CFG); > + cfg |= SCALER_CFG_SOFT_RESET; > + > + scaler_write(dev, SCALER_CFG, cfg); > +} > + > +int scaler_wait_reset(struct scaler_dev *dev) > +{ > + unsigned long end = jiffies + msecs_to_jiffies(SCALER_RESET_TIMEOUT); > + u32 cfg, reset_done = 0; > + > + while (time_before(jiffies, end)) { > + cfg = scaler_read(dev, SCALER_CFG); > + if (!(cfg & SCALER_CFG_SOFT_RESET)) { > + reset_done = 1; > + break; > + } > + usleep_range(10, 20); Hmm... that doesn't seem right... the timeout can take up to 50,000 us, and you're sleeping from 10 to 20us... that means that this loop can have up to 5000 interactions... It seems that you're wasting power here without need. I suspect that you should consider sleeping for a longer time here. Btw, instead of using time_before(jiffies, end), you could do: time_is_after_jiffies(end) As, from jiffies.h: /* time_is_after_jiffies(a) return true if a is after jiffies */ #define time_is_after_jiffies(a) time_before(jiffies, a) > + } > + > + /* > + * Write any value to read/write register and read it back. > + * If the written and read value matches, then the reset process is > + * succeeded. > + */ > + while (reset_done) { This is tricky. If the reset fail, it will return busy. Otherwise, it can loop forever here. Worse than that, you're don't even sleeping before retries, again wasting power. Why don't you just change it to something similar to: if (!reset_done) return -EBUSY; end = jiffies + msecs_to_jiffies(SCALER_RESET_TIMEOUT); while (time_is_after_jiffies(end)) { scaler_write(dev, SCALER_CFG_SOFT_RESET_CHECK_REG, SCALER_CFG_SOFT_RESET_CHECK_VAL); if (SCALER_CFG_SOFT_RESET_CHECK_VAL == scaler_read(dev, SCALER_CFG_SOFT_RESET_CHECK_REG)) return 0; msleep(10); } > + > + /* > + * TODO: need to define number of tries before returning > + * -EBUSY to the caller > + */ > + > + scaler_write(dev, SCALER_CFG_SOFT_RESET_CHECK_REG, > + SCALER_CFG_SOFT_RESET_CHECK_VAL); > + if (SCALER_CFG_SOFT_RESET_CHECK_VAL == > + scaler_read(dev, SCALER_CFG_SOFT_RESET_CHECK_REG)) > + return 0; > + } > + > + return -EBUSY; > +} > + > +void scaler_hw_set_irq(struct scaler_dev *dev, int irq_num, bool enable) > +{ > + u32 cfg; > + > + if ((irq_num < SCALER_INT_FRAME_END) || > + (irq_num > SCALER_INT_TIMEOUT)) > + return; > + > + cfg = scaler_read(dev, SCALER_INT_EN); > + if (enable) > + cfg |= (1 << irq_num); Why do you need parenthesis here? > + else > + cfg &= ~(1 << irq_num); > + scaler_write(dev, SCALER_INT_EN, cfg); > +} > + > +void scaler_hw_set_input_addr(struct scaler_dev *dev, struct scaler_addr *addr) > +{ > + scaler_dbg(dev, "src_buf: 0x%x, cb: 0x%x, cr: 0x%x", > + addr->y, addr->cb, addr->cr); > + scaler_write(dev, SCALER_SRC_Y_BASE, addr->y); > + scaler_write(dev, SCALER_SRC_CB_BASE, addr->cb); > + scaler_write(dev, SCALER_SRC_CR_BASE, addr->cr); > +} > + > +void scaler_hw_set_output_addr(struct scaler_dev *dev, > + struct scaler_addr *addr) > +{ > + scaler_dbg(dev, "dst_buf: 0x%x, cb: 0x%x, cr: 0x%x", > + addr->y, addr->cb, addr->cr); > + scaler_write(dev, SCALER_DST_Y_BASE, addr->y); > + scaler_write(dev, SCALER_DST_CB_BASE, addr->cb); > + scaler_write(dev, SCALER_DST_CR_BASE, addr->cr); > +} > + > +void scaler_hw_set_in_size(struct scaler_ctx *ctx) > +{ > + struct scaler_dev *dev = ctx->scaler_dev; > + struct scaler_frame *frame = &ctx->s_frame; > + u32 cfg; > + > + /* set input pixel offset */ > + cfg = (frame->selection.left & SCALER_SRC_YH_POS_MASK) << > + SCALER_SRC_YH_POS_SHIFT; > + cfg |= ((frame->selection.top & SCALER_SRC_YV_POS_MASK) << > + SCALER_SRC_YV_POS_SHIFT); > + scaler_write(dev, SCALER_SRC_Y_POS, cfg); > + > + /* TODO: calculate 'C' plane h/v offset using 'Y' plane h/v offset */ > + > + /* Set input span */ > + cfg = (frame->f_width & SCALER_SRC_Y_SPAN_MASK) << > + SCALER_SRC_Y_SPAN_SHIFT; > + if (is_yuv420_2p(frame->fmt)) > + cfg |= ((frame->f_width & SCALER_SRC_C_SPAN_MASK) << > + SCALER_SRC_C_SPAN_SHIFT); > + else /* TODO: Verify */ > + cfg |= ((frame->f_width & SCALER_SRC_C_SPAN_MASK) << > + SCALER_SRC_C_SPAN_SHIFT); > + > + scaler_write(dev, SCALER_SRC_SPAN, cfg); > + > + /* Set input cropped size */ > + cfg = (frame->selection.width & SCALER_SRC_WIDTH_MASK) << > + SCALER_SRC_WIDTH_SHIFT; > + cfg |= ((frame->selection.height & SCALER_SRC_HEIGHT_MASK) << > + SCALER_SRC_HEIGHT_SHIFT); > + scaler_write(dev, SCALER_SRC_WH, cfg); > + > + scaler_dbg(dev, "src: posx: %d, posY: %d, spanY: %d, spanC: %d, cropX: %d, cropY: %d\n", > + frame->selection.left, frame->selection.top, > + frame->f_width, frame->f_width, frame->selection.width, > + frame->selection.height); > +} > + > +void scaler_hw_set_in_image_format(struct scaler_ctx *ctx) > +{ > + struct scaler_dev *dev = ctx->scaler_dev; > + struct scaler_frame *frame = &ctx->s_frame; > + u32 cfg; > + > + cfg = scaler_read(dev, SCALER_SRC_CFG); > + cfg &= ~(SCALER_SRC_COLOR_FORMAT_MASK << SCALER_SRC_COLOR_FORMAT_SHIFT); > + cfg |= ((frame->fmt->scaler_color & SCALER_SRC_COLOR_FORMAT_MASK) << > + SCALER_SRC_COLOR_FORMAT_SHIFT); > + > + /* Setting tiled/linear format */ > + if (is_tiled_fmt(frame->fmt)) > + cfg |= SCALER_SRC_TILE_EN; > + else > + cfg &= ~SCALER_SRC_TILE_EN; > + > + scaler_write(dev, SCALER_SRC_CFG, cfg); > +} > + > +void scaler_hw_set_out_size(struct scaler_ctx *ctx) > +{ > + struct scaler_dev *dev = ctx->scaler_dev; > + struct scaler_frame *frame = &ctx->d_frame; > + u32 cfg; > + > + /* Set output pixel offset */ > + cfg = (frame->selection.left & SCALER_DST_H_POS_MASK) << > + SCALER_DST_H_POS_SHIFT; > + cfg |= (frame->selection.top & SCALER_DST_V_POS_MASK) << > + SCALER_DST_V_POS_SHIFT; > + scaler_write(dev, SCALER_DST_POS, cfg); > + > + /* Set output span */ > + cfg = (frame->f_width & SCALER_DST_Y_SPAN_MASK) << > + SCALER_DST_Y_SPAN_SHIFT; > + if (is_yuv420_2p(frame->fmt)) > + cfg |= (((frame->f_width / 2) & SCALER_DST_C_SPAN_MASK) << > + SCALER_DST_C_SPAN_SHIFT); > + else > + cfg |= (((frame->f_width) & SCALER_DST_C_SPAN_MASK) << > + SCALER_DST_C_SPAN_SHIFT); > + scaler_write(dev, SCALER_DST_SPAN, cfg); > + > + /* Set output scaled size */ > + cfg = (frame->selection.width & SCALER_DST_WIDTH_MASK) << > + SCALER_DST_WIDTH_SHIFT; > + cfg |= (frame->selection.height & SCALER_DST_HEIGHT_MASK) << > + SCALER_DST_HEIGHT_SHIFT; > + scaler_write(dev, SCALER_DST_WH, cfg); > + > + scaler_dbg(dev, "dst: pos X: %d, pos Y: %d, span Y: %d, span C: %d, crop X: %d, crop Y: %d\n", > + frame->selection.left, frame->selection.top, > + frame->f_width, frame->f_width, frame->selection.width, > + frame->selection.height); > +} > + > +void scaler_hw_set_out_image_format(struct scaler_ctx *ctx) > +{ > + struct scaler_dev *dev = ctx->scaler_dev; > + struct scaler_frame *frame = &ctx->d_frame; > + u32 cfg; > + > + cfg = scaler_read(dev, SCALER_DST_CFG); > + cfg &= ~SCALER_DST_COLOR_FORMAT_MASK; > + cfg |= (frame->fmt->scaler_color & SCALER_DST_COLOR_FORMAT_MASK); > + > + scaler_write(dev, SCALER_DST_CFG, cfg); > +} > + > +void scaler_hw_set_scaler_ratio(struct scaler_ctx *ctx) > +{ > + struct scaler_dev *dev = ctx->scaler_dev; > + struct scaler_scaler *sc = &ctx->scaler; > + u32 cfg; > + > + cfg = (sc->hratio & SCALER_H_RATIO_MASK) << SCALER_H_RATIO_SHIFT; > + scaler_write(dev, SCALER_H_RATIO, cfg); > + > + cfg = (sc->vratio & SCALER_V_RATIO_MASK) << SCALER_V_RATIO_SHIFT; > + scaler_write(dev, SCALER_V_RATIO, cfg); > +} > + > +void scaler_hw_set_rotation(struct scaler_ctx *ctx) > +{ > + struct scaler_dev *dev = ctx->scaler_dev; > + u32 cfg = 0; > + > + cfg = ((ctx->ctrls_scaler.rotate->val / 90) & SCALER_ROTMODE_MASK) << > + SCALER_ROTMODE_SHIFT; > + > + if (ctx->ctrls_scaler.hflip->val) > + cfg |= SCALER_FLIP_X_EN; > + > + if (ctx->ctrls_scaler.vflip->val) > + cfg |= SCALER_FLIP_Y_EN; > + > + scaler_write(dev, SCALER_ROT_CFG, cfg); > +} > + > +void scaler_hw_set_csc_coeff(struct scaler_ctx *ctx) > +{ > + struct scaler_dev *dev = ctx->scaler_dev; > + enum scaler_csc_coeff type; > + u32 cfg = 0; > + int i, j; > + static const u32 csc_coeff[SCALER_CSC_COEFF_MAX][3][3] = { > + { /* YCbCr to RGB */ > + {0x254, 0x000, 0x331}, > + {0x254, 0xec8, 0xFA0}, > + {0x254, 0x409, 0x000} > + }, > + { /* RGB to YCbCr */ > + {0x084, 0x102, 0x032}, > + {0xe4c, 0xe95, 0x0e1}, > + {0x0e1, 0xebc, 0xe24} > + } }; > + > + /* TODO: add check for BT.601,BT.709 narrow/wide ranges */ > + if (is_rgb(ctx->s_frame.fmt) == is_rgb(ctx->d_frame.fmt)) { > + type = SCALER_CSC_COEFF_NONE; > + } else if (is_rgb(ctx->d_frame.fmt)) { > + type = SCALER_CSC_COEFF_YCBCR_TO_RGB; > + scaler_hw_src_y_offset_en(ctx->scaler_dev, true); > + } else { > + type = SCALER_CSC_COEFF_RGB_TO_YCBCR; > + scaler_hw_src_y_offset_en(ctx->scaler_dev, true); > + } > + > + if (type == ctx->scaler_dev->coeff_type || type >= SCALER_CSC_COEFF_MAX) > + return; > + > + for (i = 0; i < 3; i++) { > + for (j = 0; j < 3; j++) { > + cfg = csc_coeff[type][i][j]; > + scaler_write(dev, SCALER_CSC_COEF(i, j), cfg); > + } > + } > + > + ctx->scaler_dev->coeff_type = type; > +} > + > +void scaler_hw_src_y_offset_en(struct scaler_dev *dev, bool on) > +{ > + u32 cfg; > + > + cfg = scaler_read(dev, SCALER_CFG); > + if (on) > + cfg |= SCALER_CFG_CSC_Y_OFFSET_SRC_EN; > + else > + cfg &= ~SCALER_CFG_CSC_Y_OFFSET_SRC_EN; > + > + scaler_write(dev, SCALER_CFG, cfg); > +} > + > +void scaler_hw_dst_y_offset_en(struct scaler_dev *dev, bool on) > +{ > + u32 cfg; > + > + cfg = scaler_read(dev, SCALER_CFG); > + if (on) > + cfg |= SCALER_CFG_CSC_Y_OFFSET_DST_EN; > + else > + cfg &= ~SCALER_CFG_CSC_Y_OFFSET_DST_EN; > + > + scaler_write(dev, SCALER_CFG, cfg); > +} > + > +void scaler_hw_enable_control(struct scaler_dev *dev, bool on) > +{ > + u32 cfg; > + > + if (on) > + scaler_write(dev, SCALER_INT_EN, 0xffffffff); > + > + cfg = scaler_read(dev, SCALER_CFG); > + cfg |= SCALER_CFG_16_BURST_MODE; > + if (on) > + cfg |= SCALER_CFG_START_CMD; > + else > + cfg &= ~SCALER_CFG_START_CMD; > + > + scaler_dbg(dev, "%s: SCALER_CFG:0x%x\n", __func__, cfg); > + > + scaler_write(dev, SCALER_CFG, cfg); > +} > + > +unsigned int scaler_hw_get_irq_status(struct scaler_dev *dev) > +{ > + return scaler_read(dev, SCALER_INT_STATUS); > +} > + > +void scaler_hw_clear_irq(struct scaler_dev *dev, unsigned int irq) > +{ > + scaler_write(dev, SCALER_INT_STATUS, irq); > +} > diff --git a/drivers/media/platform/exynos-scaler/scaler-regs.h b/drivers/media/platform/exynos-scaler/scaler-regs.h > new file mode 100644 > index 0000000..2170df5 > --- /dev/null > +++ b/drivers/media/platform/exynos-scaler/scaler-regs.h > @@ -0,0 +1,331 @@ > +/* > + * Copyright (c) 2013 Samsung Electronics Co., Ltd. > + * http://www.samsung.com > + * > + * Samsung EXYNOS5 SoC series SCALER driver > + * > + * This program is free software; you can redistribute it and/or modify > + * it under the terms of the GNU General Public License version 2 as > + * published by the Free Software Foundation. > + */ > + > +#ifndef REGS_SCALER_H_ > +#define REGS_SCALER_H_ > + > +#include "scaler.h" > + > +/* SCALER status */ > +#define SCALER_STATUS 0x00 > +#define SCALER_STATUS_RUNNING (1 << 1) > +#define SCALER_STATUS_READY_CLK_DOWN (1 << 0) > + > +/* SCALER config */ > +#define SCALER_CFG 0x04 > +#define SCALER_CFG_FILL_EN (1 << 24) > +#define SCALER_CFG_BLEND_CLR_DIV_ALPHA_EN (1 << 17) > +#define SCALER_CFG_BLEND_EN (1 << 16) > +#define SCALER_CFG_CSC_Y_OFFSET_SRC_EN (1 << 10) > +#define SCALER_CFG_CSC_Y_OFFSET_DST_EN (1 << 9) > +#define SCALER_CFG_16_BURST_MODE (1 << 8) > +#define SCALER_CFG_SOFT_RESET (1 << 1) > +#define SCALER_CFG_START_CMD (1 << 0) > + > +/* SCALER interrupts */ > +#define SCALER_INT_TIMEOUT 31 > +#define SCALER_INT_ILLEGAL_BLEND 24 > +#define SCALER_INT_ILLEGAL_RATIO 23 > +#define SCALER_INT_ILLEGAL_DST_HEIGHT 22 > +#define SCALER_INT_ILLEGAL_DST_WIDTH 21 > +#define SCALER_INT_ILLEGAL_DST_V_POS 20 > +#define SCALER_INT_ILLEGAL_DST_H_POS 19 > +#define SCALER_INT_ILLEGAL_DST_C_SPAN 18 > +#define SCALER_INT_ILLEGAL_DST_Y_SPAN 17 > +#define SCALER_INT_ILLEGAL_DST_CR_BASE 16 > +#define SCALER_INT_ILLEGAL_DST_CB_BASE 15 > +#define SCALER_INT_ILLEGAL_DST_Y_BASE 14 > +#define SCALER_INT_ILLEGAL_DST_COLOR 13 > +#define SCALER_INT_ILLEGAL_SRC_HEIGHT 12 > +#define SCALER_INT_ILLEGAL_SRC_WIDTH 11 > +#define SCALER_INT_ILLEGAL_SRC_CV_POS 10 > +#define SCALER_INT_ILLEGAL_SRC_CH_POS 9 > +#define SCALER_INT_ILLEGAL_SRC_YV_POS 8 > +#define SCALER_INT_ILLEGAL_SRC_YH_POS 7 > +#define SCALER_INT_ILLEGAL_SRC_C_SPAN 6 > +#define SCALER_INT_ILLEGAL_SRC_Y_SPAN 5 > +#define SCALER_INT_ILLEGAL_SRC_CR_BASE 4 > +#define SCALER_INT_ILLEGAL_SRC_CB_BASE 3 > +#define SCALER_INT_ILLEGAL_SRC_Y_BASE 2 > +#define SCALER_INT_ILLEGAL_SRC_COLOR 1 > +#define SCALER_INT_FRAME_END 0 > + > +/* SCALER interrupt enable */ > +#define SCALER_INT_EN 0x08 > +#define SCALER_INT_EN_DEFAULT 0x81ffffff > + > +/* SCALER interrupt status */ > +#define SCALER_INT_STATUS 0x0c > +#define SCALER_INT_STATUS_CLEAR 0xffffffff > +#define SCALER_INT_STATUS_ERROR 0x81fffffe > + > +/* SCALER source format configuration */ > +#define SCALER_SRC_CFG 0x10 > +#define SCALER_SRC_TILE_EN (0x1 << 10) > +#define SCALER_SRC_BYTE_SWAP_MASK 0x3 > +#define SCALER_SRC_BYTE_SWAP_SHIFT 5 > +#define SCALER_SRC_COLOR_FORMAT_MASK 0xf > +#define SCALER_SRC_COLOR_FORMAT_SHIFT 0 > + > +/* SCALER source y-base */ > +#define SCALER_SRC_Y_BASE 0x14 > + > +/* SCALER source cb-base */ > +#define SCALER_SRC_CB_BASE 0x18 > + > +/* SCALER source cr-base */ > +#define SCALER_SRC_CR_BASE 0x294 > + > +/* SCALER source span */ > +#define SCALER_SRC_SPAN 0x1c > +#define SCALER_SRC_C_SPAN_MASK 0x3fff > +#define SCALER_SRC_C_SPAN_SHIFT 16 > +#define SCALER_SRC_Y_SPAN_MASK 0x3fff > +#define SCALER_SRC_Y_SPAN_SHIFT 0 > + > +/* > + * SCALER source y-position > + * 14.2 fixed-point format > + * - 14 bits at the MSB are for the integer part. > + * - 2 bits at LSB are for fractional part and always has to be set to 0. > + */ > +#define SCALER_SRC_Y_POS 0x20 > +#define SCALER_SRC_YH_POS_MASK 0xfffc > +#define SCALER_SRC_YH_POS_SHIFT 16 > +#define SCALER_SRC_YV_POS_MASK 0xfffc > +#define SCALER_SRC_YV_POS_SHIFT 0 > + > +/* SCALER source width/height */ > +#define SCALER_SRC_WH 0x24 > +#define SCALER_SRC_WIDTH_MASK 0x3fff > +#define SCALER_SRC_WIDTH_SHIFT 16 > +#define SCALER_SRC_HEIGHT_MASK 0x3fff > +#define SCALER_SRC_HEIGHT_SHIFT 0 > + > +/* > + * SCALER source c-position > + * 14.2 fixed-point format > + * - 14 bits at the MSB are for the integer part. > + * - 2 bits at LSB are for fractional part and always has to be set to 0. > + */ > +#define SCALER_SRC_C_POS 0x28 > +#define SCALER_SRC_CH_POS_MASK 0xfffc > +#define SCALER_SRC_CH_POS_SHIFT 16 > +#define SCALER_SRC_CV_POS_MASK 0xfffc > +#define SCALER_SRC_CV_POS_SHIFT 0 > + > +/* SCALER destination format configuration */ > +#define SCALER_DST_CFG 0x30 > +#define SCALER_DST_BYTE_SWAP_MASK 0x3 > +#define SCALER_DST_BYTE_SWAP_SHIFT 5 > +#define SCALER_DST_COLOR_FORMAT_MASK 0xf > + > +/* SCALER destination y-base */ > +#define SCALER_DST_Y_BASE 0x34 > + > +/* SCALER destination cb-base */ > +#define SCALER_DST_CB_BASE 0x38 > + > +/* SCALER destination cr-base */ > +#define SCALER_DST_CR_BASE 0x298 > + > +/* SCALER destination span */ > +#define SCALER_DST_SPAN 0x3c > +#define SCALER_DST_C_SPAN_MASK 0x3fff > +#define SCALER_DST_C_SPAN_SHIFT 16 > +#define SCALER_DST_Y_SPAN_MASK 0x3fff > +#define SCALER_DST_Y_SPAN_SHIFT 0 > + > +/* SCALER destination width/height */ > +#define SCALER_DST_WH 0x40 > +#define SCALER_DST_WIDTH_MASK 0x3fff > +#define SCALER_DST_WIDTH_SHIFT 16 > +#define SCALER_DST_HEIGHT_MASK 0x3fff > +#define SCALER_DST_HEIGHT_SHIFT 0 > + > +/* SCALER destination position */ > +#define SCALER_DST_POS 0x44 > +#define SCALER_DST_H_POS_MASK 0x3fff > +#define SCALER_DST_H_POS_SHIFT 16 > +#define SCALER_DST_V_POS_MASK 0x3fff > +#define SCALER_DST_V_POS_SHIFT 0 > + > +/* SCALER horizontal scale ratio */ > +#define SCALER_H_RATIO 0x50 > +#define SCALER_H_RATIO_MASK 0x7ffff > +#define SCALER_H_RATIO_SHIFT 0 > + > +/* SCALER vertical scale ratio */ > +#define SCALER_V_RATIO 0x54 > +#define SCALER_V_RATIO_MASK 0x7ffff > +#define SCALER_V_RATIO_SHIFT 0 > + > +/* SCALER rotation config */ > +#define SCALER_ROT_CFG 0x58 > +#define SCALER_FLIP_X_EN (1 << 3) > +#define SCALER_FLIP_Y_EN (1 << 2) > +#define SCALER_ROTMODE_MASK 0x3 > +#define SCALER_ROTMODE_SHIFT 0 > + > +/* SCALER csc coefficients */ > +#define SCALER_CSC_COEF(x, y) (0x220 + ((x * 12) + (y * 4))) > + > +/* SCALER dither config */ > +#define SCALER_DITH_CFG 0x250 > +#define SCALER_DITHER_R_TYPE_MASK 0x7 > +#define SCALER_DITHER_R_TYPE_SHIFT 6 > +#define SCALER_DITHER_G_TYPE_MASK 0x7 > +#define SCALER_DITHER_G_TYPE_SHIFT 3 > +#define SCALER_DITHER_B_TYPE_MASK 0x7 > +#define SCALER_DITHER_B_TYPE_SHIFT 0 > + > +/* SCALER src blend color */ > +#define SCALER_SRC_BLEND_COLOR 0x280 > +#define SCALER_SRC_COLOR_SEL_INV (1 << 31) > +#define SCALER_SRC_COLOR_SEL_MASK 0x3 > +#define SCALER_SRC_COLOR_SEL_SHIFT 29 > +#define SCALER_SRC_COLOR_OP_SEL_INV (1 << 28) > +#define SCALER_SRC_COLOR_OP_SEL_MASK 0xf > +#define SCALER_SRC_COLOR_OP_SEL_SHIFT 24 > +#define SCALER_SRC_GLOBAL_COLOR0_MASK 0xff > +#define SCALER_SRC_GLOBAL_COLOR0_SHIFT 16 > +#define SCALER_SRC_GLOBAL_COLOR1_MASK 0xff > +#define SCALER_SRC_GLOBAL_COLOR1_SHIFT 8 > +#define SCALER_SRC_GLOBAL_COLOR2_MASK 0xff > +#define SCALER_SRC_GLOBAL_COLOR2_SHIFT 0 > + > +/* SCALER src blend alpha */ > +#define SCALER_SRC_BLEND_ALPHA 0x284 > +#define SCALER_SRC_ALPHA_SEL_INV (1 << 31) > +#define SCALER_SRC_ALPHA_SEL_MASK 0x3 > +#define SCALER_SRC_ALPHA_SEL_SHIFT 29 > +#define SCALER_SRC_ALPHA_OP_SEL_INV (1 << 28) > +#define SCALER_SRC_ALPHA_OP_SEL_MASK 0xf > +#define SCALER_SRC_ALPHA_OP_SEL_SHIFT 24 > +#define SCALER_SRC_GLOBAL_ALPHA_MASK 0xff > +#define SCALER_SRC_GLOBAL_ALPHA_SHIFT 0 > + > +/* SCALER dst blend color */ > +#define SCALER_DST_BLEND_COLOR 0x288 > +#define SCALER_DST_COLOR_SEL_INV (1 << 31) > +#define SCALER_DST_COLOR_SEL_MASK 0x3 > +#define SCALER_DST_COLOR_SEL_SHIFT 29 > +#define SCALER_DST_COLOR_OP_SEL_INV (1 << 28) > +#define SCALER_DST_COLOR_OP_SEL_MASK 0xf > +#define SCALER_DST_COLOR_OP_SEL_SHIFT 24 > +#define SCALER_DST_GLOBAL_COLOR0_MASK 0xff > +#define SCALER_DST_GLOBAL_COLOR0_SHIFT 16 > +#define SCALER_DST_GLOBAL_COLOR1_MASK 0xff > +#define SCALER_DST_GLOBAL_COLOR1_SHIFT 8 > +#define SCALER_DST_GLOBAL_COLOR2_MASK 0xff > +#define SCALER_DST_GLOBAL_COLOR2_SHIFT 0 > + > +/* SCALER dst blend alpha */ > +#define SCALER_DST_BLEND_ALPHA 0x28c > +#define SCALER_DST_ALPHA_SEL_INV (1 << 31) > +#define SCALER_DST_ALPHA_SEL_MASK 0x3 > +#define SCALER_DST_ALPHA_SEL_SHIFT 29 > +#define SCALER_DST_ALPHA_OP_SEL_INV (1 << 28) > +#define SCALER_DST_ALPHA_OP_SEL_MASK 0xf > +#define SCALER_DST_ALPHA_OP_SEL_SHIFT 24 > +#define SCALER_DST_GLOBAL_ALPHA_MASK 0xff > +#define SCALER_DST_GLOBAL_ALPHA_SHIFT 0 > + > +/* SCALER fill color */ > +#define SCALER_FILL_COLOR 0x290 > +#define SCALER_FILL_ALPHA_MASK 0xff > +#define SCALER_FILL_ALPHA_SHIFT 24 > +#define SCALER_FILL_COLOR0_MASK 0xff > +#define SCALER_FILL_COLOR0_SHIFT 16 > +#define SCALER_FILL_COLOR1_MASK 0xff > +#define SCALER_FILL_COLOR1_SHIFT 8 > +#define SCALER_FILL_COLOR2_MASK 0xff > +#define SCALER_FILL_COLOR2_SHIFT 0 > + > +/* SCALER address queue config */ > +#define SCALER_ADDR_QUEUE_CONFIG 0x2a0 > +#define SCALER_ADDR_QUEUE_RST 0x1 > + > +/* Arbitrary R/W register and value to check if soft reset succeeded */ > +#define SCALER_CFG_SOFT_RESET_CHECK_REG SCALER_SRC_CFG > +#define SCALER_CFG_SOFT_RESET_CHECK_VAL 0x3 > + > +struct scaler_error { > + u32 irq_num; > + const char * const name; > +}; > + > +static const struct scaler_error scaler_errors[] = { > + {SCALER_INT_TIMEOUT, "Timeout"}, > + {SCALER_INT_ILLEGAL_BLEND, "Illegal Blend setting"}, > + {SCALER_INT_ILLEGAL_RATIO, "Illegal Scale ratio setting"}, > + {SCALER_INT_ILLEGAL_DST_HEIGHT, "Illegal Dst Height"}, > + {SCALER_INT_ILLEGAL_DST_WIDTH, "Illegal Dst Width"}, > + {SCALER_INT_ILLEGAL_DST_V_POS, "Illegal Dst V-Pos"}, > + {SCALER_INT_ILLEGAL_DST_H_POS, "Illegal Dst H-Pos"}, > + {SCALER_INT_ILLEGAL_DST_C_SPAN, "Illegal Dst C-Span"}, > + {SCALER_INT_ILLEGAL_DST_Y_SPAN, "Illegal Dst Y-span"}, > + {SCALER_INT_ILLEGAL_DST_CR_BASE, "Illegal Dst Cr-base"}, > + {SCALER_INT_ILLEGAL_DST_CB_BASE, "Illegal Dst Cb-base"}, > + {SCALER_INT_ILLEGAL_DST_Y_BASE, "Illegal Dst Y-base"}, > + {SCALER_INT_ILLEGAL_DST_COLOR, "Illegal Dst Color"}, > + {SCALER_INT_ILLEGAL_SRC_HEIGHT, "Illegal Src Height"}, > + {SCALER_INT_ILLEGAL_SRC_WIDTH, "Illegal Src Width"}, > + {SCALER_INT_ILLEGAL_SRC_CV_POS, "Illegal Src Chroma V-pos"}, > + {SCALER_INT_ILLEGAL_SRC_CH_POS, "Illegal Src Chroma H-pos"}, > + {SCALER_INT_ILLEGAL_SRC_YV_POS, "Illegal Src Luma V-pos"}, > + {SCALER_INT_ILLEGAL_SRC_YH_POS, "Illegal Src Luma H-pos"}, > + {SCALER_INT_ILLEGAL_SRC_C_SPAN, "Illegal Src C-span"}, > + {SCALER_INT_ILLEGAL_SRC_Y_SPAN, "Illegal Src Y-span"}, > + {SCALER_INT_ILLEGAL_SRC_CR_BASE, "Illegal Src Cr-base"}, > + {SCALER_INT_ILLEGAL_SRC_CB_BASE, "Illegal Src Cb-base"}, > + {SCALER_INT_ILLEGAL_SRC_Y_BASE, "Illegal Src Y-base"}, > + {SCALER_INT_ILLEGAL_SRC_COLOR, "Illegal Src Color setting"}, > +}; > + > +#define SCALER_NUM_ERRORS ARRAY_SIZE(scaler_errors) > + > +static inline u32 scaler_read(struct scaler_dev *dev, u32 offset) > +{ > + return readl(dev->regs + offset); > +} > + > +static inline void scaler_write(struct scaler_dev *dev, u32 offset, u32 value) > +{ > + writel(value, dev->regs + offset); > +} > + > +static inline void scaler_hw_address_queue_reset(struct scaler_ctx *ctx) > +{ > + scaler_write(ctx->scaler_dev, SCALER_ADDR_QUEUE_CONFIG, > + SCALER_ADDR_QUEUE_RST); > +} > + > +void scaler_hw_set_sw_reset(struct scaler_dev *dev); > +int scaler_wait_reset(struct scaler_dev *dev); > +void scaler_hw_set_irq(struct scaler_dev *dev, int interrupt, bool mask); > +void scaler_hw_set_input_addr(struct scaler_dev *dev, struct scaler_addr *addr); > +void scaler_hw_set_output_addr(struct scaler_dev *dev, > + struct scaler_addr *addr); > +void scaler_hw_set_in_size(struct scaler_ctx *ctx); > +void scaler_hw_set_in_image_format(struct scaler_ctx *ctx); > +void scaler_hw_set_out_size(struct scaler_ctx *ctx); > +void scaler_hw_set_out_image_format(struct scaler_ctx *ctx); > +void scaler_hw_set_scaler_ratio(struct scaler_ctx *ctx); > +void scaler_hw_set_rotation(struct scaler_ctx *ctx); > +void scaler_hw_set_csc_coeff(struct scaler_ctx *ctx); > +void scaler_hw_src_y_offset_en(struct scaler_dev *dev, bool on); > +void scaler_hw_dst_y_offset_en(struct scaler_dev *dev, bool on); > +void scaler_hw_enable_control(struct scaler_dev *dev, bool on); > +unsigned int scaler_hw_get_irq_status(struct scaler_dev *dev); > +void scaler_hw_clear_irq(struct scaler_dev *dev, unsigned int irq); > + > +#endif /* REGS_SCALER_H_ */ -- Cheers, Mauro -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
